CN212206469U - Torque reference mechanical force loading device - Google Patents
Torque reference mechanical force loading device Download PDFInfo
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- CN212206469U CN212206469U CN202020625842.7U CN202020625842U CN212206469U CN 212206469 U CN212206469 U CN 212206469U CN 202020625842 U CN202020625842 U CN 202020625842U CN 212206469 U CN212206469 U CN 212206469U
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- 238000009434 installation Methods 0.000 claims description 2
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Abstract
The invention relates to a torque reference mechanical force loading device, which comprises a base, a lever balancing device, a sensor loading device and a guide shaft, wherein the lever balancing device, the sensor loading device and the guide shaft are arranged on the base; the lever balancing device is arranged on the base and is positioned at one end of the base; the guide shafts are arranged on two sides of the base respectively, the upper part of each guide shaft is fixed to the end part of the upper connecting plate, the lower part of each guide shaft is fixed to the end part of the lower connecting plate, and the upper connecting plate and the lower connecting plate are fixed to the side wall of the base; the sensor loading device is connected with the lever balancing device, and a moment is loaded for measurement through the sensor loading device. The invention can effectively improve the torque sensitivity, realizes the detection of various portable torque measuring instruments, and can be widely applied in the field of measurement.
Description
Technical Field
The invention relates to a metering detection device, in particular to a torque reference mechanical force loading device.
Background
Currently, there are a variety of torque reference machines on the market. Factors influencing the uncertainty of the torque reference device mainly comprise the uncertainty of the length of a force arm of the lever device, the uncertainty of a weight loading force value, the uncertainty of friction torque of a support bearing, the uncertainty caused by coaxiality change, the uncertainty brought by stress and the uncertainty caused by the levelness of the force arm. How to ensure that the torque reference device works to accord with a torque mechanics model, reduce each uncertainty component and ensure that uncertainty indexes of the whole device become key contents of the research of the project. The torque application mode of the unilateral weight application is a mode generally adopted by the current torque reference device, but the torque application mode is not a pure torque application mode, has large pressure on a knife edge except for torque, influences the sensitivity of the torque, and has a single applicable type.
Generally, the torque value of a product is mostly detected by using a weight group loading mode during force value detection, and in the prior art, each weight group applies torque to the single side of a bar through gradually increasing or reducing the number of weights. The measurement accuracy depends on the quality and the number of stages of the weight, and if the sensitivity of the instrument cannot be detected, the weights with different qualities need to be replaced, so that the measurement is very inconvenient, time and labor are consumed, and the working efficiency is influenced.
Disclosure of Invention
In view of the above problems, an object of the present invention is to provide a torque reference mechanical loading device, which can effectively improve torque sensitivity and can detect various portable torque meters.
In order to achieve the purpose, the invention adopts the following technical scheme: a torque reference mechanical force loading device comprises a base, a lever balancing device, a sensor loading device and a guide shaft, wherein the lever balancing device, the sensor loading device and the guide shaft are arranged on the base; the lever balancing device is arranged on the base and is positioned at one end of the base; the guide shafts are arranged on two sides of the base respectively, the upper part of each guide shaft is fixed to the end part of the upper connecting plate, the lower part of each guide shaft is fixed to the end part of the lower connecting plate, and the upper connecting plate and the lower connecting plate are fixed to the side wall of the base; the sensor loading device is connected with the lever balancing device, and a moment is loaded for measurement through the sensor loading device.
Further, the lever balancing device is in a lever structure.
Further, the lever balancing device comprises a lever balancing frame, a steel belt and a lifting lug; the middle part of the lever balancing stand is fixed at the end part of the base through a fixing part, the two ends of the lever balancing stand are respectively provided with the steel belts, the lower end of each steel belt is provided with the lifting lug, and the lifting lugs are connected with the sensor loading device.
Further, the lifting lug is fixed with the lower end of the steel belt in a clamping mode.
Furthermore, the end parts of the two ends of the upper connecting plate are respectively provided with a through hole for the sensor loading device to pass through.
Further, the sensor loading device comprises a pin shaft, a lug seat, a sensor, a first screw rod nut, a screw rod, a bearing seat, a bearing, an installation plate, a guide block, a locking nut, a fixing plate and a transmission mechanism; the fixing plate is arranged at one end of the mounting plate, and the mounting plate is fixed at the bottom of the upper connecting plate by the fixing plate; the lower part of one end of the mounting plate is provided with the transmission mechanism, the lead screw is arranged on the transmission mechanism, and one end of the lead screw penetrates through one end of the guide block and is connected with the guide block through a key; the other end of the guide block is arranged on the guide shaft in a sliding manner and moves up and down along the guide shaft; the other end of the lead screw penetrates through the transmission mechanism, and the other end of the lead screw is connected with the bottom of the sensor through the first lead screw nut; the top of the sensor is provided with the lifting lug seat, and the lifting lug seat is connected with the lifting lug at the lower end of the lever balancing device through the pin shaft.
Furthermore, one end part of the lead screw is locked on the guide block by adopting a locking nut.
Further, the transmission mechanism comprises a motor fixing seat, a servo motor, a driving wheel, a bearing seat, a bearing, a second lead screw nut, a lead screw nut seat and a driven wheel; the motor fixing seat is arranged at the lower part of one end of the mounting plate, the servo motor is arranged on the motor fixing seat, and the output shaft of the servo motor is provided with the driving wheel; the other end of the mounting plate is provided with a mounting hole, the bearing seat is arranged at the other end of the mounting plate through the mounting hole, and the bearing is arranged in the bearing seat; the second lead screw nut is arranged on the lead screw nut seat, and the lead screw nut seat is arranged on the bearing and rotates along with the bearing; the driven wheel is in transmission connection with the driving wheel through a belt, the driven wheel is mounted on the second lead screw nut, and the servo motor controls the second lead screw nut to rotate.
Furthermore, one end of the lead screw is arranged in the second lead screw nut and penetrates through the second lead screw nut to be connected with the guide block; the other end of the lead screw penetrates through the bearing seat to be connected with the sensor.
Further, the sensor is a tension sensor.
Due to the adoption of the technical scheme, the invention has the following advantages: the sensor servo motor loading device adopted by the invention can quickly detect the loaded value, effectively improves the sensitivity and realizes the detection of various portable torque measuring instruments.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an exploded view of a lever balancer according to an embodiment of the present invention;
FIG. 3 is an exploded view of a sensor loading assembly according to an embodiment of the present invention;
reference numerals: the device comprises a base 1, a lever balancing device 2, a sensor loading device 3, a guide shaft 4, a lever balancing stand 101, a steel belt 102, a lifting lug 103, a pin shaft 301, a lifting lug seat 302, a sensor 303, a lead screw nut 304, a lead screw 305, a bearing seat 306, a bearing 307, a mounting plate 308, a lead screw nut seat 309, a lead screw nut 310, a driven wheel 311, a guide block 312, a lock nut 313, a driving wheel 314, a servo motor 315, a motor fixing seat 316 and a fixing plate 317.
Detailed Description
In the description of the present invention, it is to be understood that the terms "upper", "lower", "inside", "outside", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The invention is described in detail below with reference to the figures and examples.
As shown in FIG. 1, the invention provides a torque reference mechanical force loading device, which comprises a base 1, a lever balancing device 2, a sensor loading device 3 and a guide shaft 4, wherein the lever balancing device, the sensor loading device and the guide shaft are arranged on the base 1. The lever balancing device 2 is arranged on the base 1 and is positioned at one end of the base 1. The number of the guide shafts 4 is two, the two guide shafts are respectively arranged on two sides of the base 1, the upper part of each guide shaft 4 is respectively fixed at the end part of the upper connecting plate, the lower part of each guide shaft 4 is respectively fixed at the end part of the lower connecting plate, and the upper connecting plate and the lower connecting plate are both fixed on the side wall of the base 1; the sensor loading device 3 is connected with the lever balancing device 2, and the measuring moment is loaded through the sensor loading device 3.
As shown in fig. 2, the lever balance device 2 is a lever structure, and includes a lever balance frame 101, a steel band 102, and a lifting lug 103. The middle part of the lever balance frame 101 is fixed at the end part of the base 1 through a fixing piece, steel belts 102 are respectively arranged at two ends of the lever balance frame 101, lifting lugs 103 are arranged at the lower ends of the steel belts 102, and the lifting lugs 103 are connected with the sensor loading device 3. Wherein, the lifting lug 103 is fixed with the lower end of the steel belt 102 in a clamping manner.
In the above embodiment, the lever balance frame 101 may be a hollow structure. And the lever balancing stand 101 is further provided with an adjusting mechanism and a connecting piece connected with the tested piece, and the adjusting mechanism and the connecting piece connected with the tested piece are all of the existing structure, which is not described herein again.
In the above embodiments, the two ends of the upper connecting plate are respectively provided with a through hole for the sensor loading device 3 to pass through the upper connecting plate.
As shown in fig. 3, the sensor loading device 3 includes a pin 301, a lug seat 302, a sensor 303, a first lead screw nut 304, a lead screw 305, a bearing seat 306, a bearing 307, a mounting plate 308, a guide block 312, a lock nut 313, a fixing plate 317, and a transmission mechanism.
The fixing plate 317 is disposed at one end of the mounting plate 308, and the mounting plate 308 is fixed to the bottom of the upper connecting plate by the fixing plate 317. The lower part of one end of the mounting plate 308 is provided with a transmission mechanism, the lead screw 305 is mounted on the transmission mechanism, and in order to ensure that the lead screw 305 can only move up and down and can not rotate, the rotation angle of the lead screw 305 needs to be limited. One end of the screw 305 penetrates through one end of the guide block 312 and is connected with the guide block 312 through a key, and one end part of the screw 305 is locked on the guide block 312 by adopting a locking nut 313; the other end of the guide block 312 is slidably disposed on the guide shaft 4 and can move up and down along the guide shaft 4, so as to limit the rotational degree of freedom of the lead screw 305, and when the lead screw nut 310 rotates, the lead screw 305 moves up and down uniformly and vertically.
The other end of the lead screw 305 passes through the transmission mechanism, and the end is connected with the bottom of the sensor 303 through a first lead screw nut 304; a lifting lug seat 302 is installed on the top of the sensor 303, and the lifting lug seat 302 is connected with the lifting lug 103 at the lower end of the lever balancing device 2 through a pin shaft 301. In use, the sensor 303 is pulled down to sense the loading torque by uniform vertical movement of the lead screw 305.
In the above embodiment, the transmission mechanism includes a motor fixing seat 316, a servo motor 315, a driving wheel 314, a bearing seat 306, a bearing 307, a second lead screw nut 310, a lead screw nut seat 309 and a driven wheel 311.
The motor fixing seat 316 is arranged at the lower part of one end of the mounting plate 308, the servo motor 315 is arranged on the motor fixing seat 316, and the driving wheel 314 is arranged on the output shaft of the servo motor 315. The other end of the mounting plate 308 is provided with a mounting hole, the bearing seat 306 is arranged at the other end of the mounting plate 308 through the mounting hole, and a bearing 307 is arranged in the bearing seat 306; the second lead screw nut 310 is mounted on a lead screw nut mount 309, and the lead screw nut mount 309 is mounted on the bearing 307 so as to be rotatable with the bearing 307. The driven wheel 311 is in transmission connection with the driving wheel 314 through a belt, and the driven wheel 311 is mounted on the second lead screw nut 310, so that the second lead screw nut 310 is controlled to rotate by driving the servo motor 315. One end of the screw 305 is mounted in a second screw nut 310, and passes through the second screw nut 310 to be connected with a guide block 312; the other end of the lead screw 305 is connected to the sensor 303 through a bearing block 306.
In the above embodiment, the sensor 303 is a tension sensor.
In conclusion, the device can ensure the quick realization of the loading process, improve the measurement precision and realize the detection of various portable torque measuring instruments, such as a standard torquemeter, a standard torque wrench, a working torquemeter and a torque wrench, with wide measurement range; the direction of the detection torque applied to various portable torque measuring instruments such as a standard torque meter, a standard torque wrench, a working torque meter and a torque wrench is determined through the connection state of the sensor loading device 3 and the lifting lug 103 of the lever balancing device 2.
The tension sensor has high detection sensitivity, wide measurement range and quick detection, and can realize quick detection of various portable torque measuring instruments, such as a standard torque meter, a standard torque wrench, a working torque meter and a torque wrench. The device can realize the detection of all the portable torque measuring instruments at present through a sensor loading design.
The above embodiments are only for illustrating the present invention, and the structure, size, arrangement position and shape of each component can be changed, and on the basis of the technical scheme of the present invention, the improvement and equivalent transformation of the individual components according to the principle of the present invention should not be excluded from the protection scope of the present invention.
Claims (10)
1. A torque reference mechanical force loading device is characterized in that: the device comprises a base, a lever balancing device, a sensor loading device and a guide shaft, wherein the lever balancing device, the sensor loading device and the guide shaft are arranged on the base; the lever balancing device is arranged on the base and is positioned at one end of the base; the guide shafts are arranged on two sides of the base respectively, the upper part of each guide shaft is fixed to the end part of the upper connecting plate, the lower part of each guide shaft is fixed to the end part of the lower connecting plate, and the upper connecting plate and the lower connecting plate are fixed to the side wall of the base; the sensor loading device is connected with the lever balancing device, and a moment is loaded for measurement through the sensor loading device.
2. The apparatus of claim 1, wherein: the lever balancing device is of a lever structure.
3. The apparatus of claim 2, wherein: the lever balancing device comprises a lever balancing frame, a steel belt and a lifting lug; the middle part of the lever balancing stand is fixed at the end part of the base through a fixing part, the two ends of the lever balancing stand are respectively provided with the steel belts, the lower end of each steel belt is provided with the lifting lug, and the lifting lugs are connected with the sensor loading device.
4. The apparatus of claim 3, wherein: the lifting lug is fixed with the lower end of the steel belt in a clamping mode.
5. The apparatus of any of claims 1 to 4, wherein: and the end parts of the two ends of the upper connecting plate are respectively provided with a through hole for the sensor loading device to pass through.
6. The apparatus of claim 4, wherein: the sensor loading device comprises a pin shaft, a lug seat, a sensor, a first screw nut, a screw, a bearing seat, a bearing, an installation plate, a guide block, a locking nut, a fixing plate and a transmission mechanism;
the fixing plate is arranged at one end of the mounting plate, and the mounting plate is fixed at the bottom of the upper connecting plate by the fixing plate; the lower part of one end of the mounting plate is provided with the transmission mechanism, the lead screw is arranged on the transmission mechanism, and one end of the lead screw penetrates through one end of the guide block and is connected with the guide block through a key; the other end of the guide block is arranged on the guide shaft in a sliding manner and moves up and down along the guide shaft;
the other end of the lead screw penetrates through the transmission mechanism, and the other end of the lead screw is connected with the bottom of the sensor through the first lead screw nut; the top of the sensor is provided with the lifting lug seat, and the lifting lug seat is connected with the lifting lug at the lower end of the lever balancing device through the pin shaft.
7. The apparatus of claim 6, wherein: and one end part of the lead screw is locked on the guide block by adopting a locking nut.
8. The apparatus of claim 6, wherein: the transmission mechanism comprises a motor fixing seat, a servo motor, a driving wheel, a bearing seat, a bearing, a second lead screw nut, a lead screw nut seat and a driven wheel;
the motor fixing seat is arranged at the lower part of one end of the mounting plate, the servo motor is arranged on the motor fixing seat, and the output shaft of the servo motor is provided with the driving wheel; the other end of the mounting plate is provided with a mounting hole, the bearing seat is arranged at the other end of the mounting plate through the mounting hole, and the bearing is arranged in the bearing seat; the second lead screw nut is arranged on the lead screw nut seat, and the lead screw nut seat is arranged on the bearing and rotates along with the bearing; the driven wheel is in transmission connection with the driving wheel through a belt, the driven wheel is mounted on the second lead screw nut, and the servo motor controls the second lead screw nut to rotate.
9. The apparatus of claim 8, wherein: one end of the lead screw is arranged in the second lead screw nut and penetrates through the second lead screw nut to be connected with the guide block; the other end of the lead screw penetrates through the bearing seat to be connected with the sensor.
10. The apparatus of any one of claims 6 to 9, wherein: the sensor is a tension sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020625842.7U CN212206469U (en) | 2020-04-23 | 2020-04-23 | Torque reference mechanical force loading device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020625842.7U CN212206469U (en) | 2020-04-23 | 2020-04-23 | Torque reference mechanical force loading device |
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| CN212206469U true CN212206469U (en) | 2020-12-22 |
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| CN202020625842.7U Active CN212206469U (en) | 2020-04-23 | 2020-04-23 | Torque reference mechanical force loading device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323165A (en) * | 2020-04-23 | 2020-06-23 | 北京特思迪设备制造有限公司 | A torque reference mechanical force loading device |
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- 2020-04-23 CN CN202020625842.7U patent/CN212206469U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111323165A (en) * | 2020-04-23 | 2020-06-23 | 北京特思迪设备制造有限公司 | A torque reference mechanical force loading device |
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